Eccentric-chain lift-pump.



No. 696,624. Patented Apr. l, |902. w. c. Buck.

ECCENTRIG CHAIN LIFT PUMP.

l v (Application ld Jung 7, 1901.) (No Model.)

y QNM@ @Y iNrrnn Smarts Partnr rms.

WILLIAM o. Buon, or PETERBOROUGH, CANADA.

SPECIFICATION forming part of Letters Patent No. 696,624, dated April 1, 1902.

Application filed .Time 7,1901.

T0 all whom t nec/,y concern:

Be it known that I, WILLIAM C. BUCK, a subject of the King of Great Britain, residing at Peterborough, county ot Peterborough, Province of'Ont-ario, Canada, have invented certain new and useful Improvements in Eccentric-Chain Lift-Pumps; and I do herebyV declare that the following is a full, clear, and exact description ot' the invention, such as Will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in eccentric-chain lift-pumps; and among other things I have in View the provision of means Jfor operating the plunger-rod With comparative ease, to provide means for effecting an increase or decrease in the lifting power of the lever, so that the operating mechanism may be adapted to deep or shallow Wells, to provide means for taking up slack in the operating parts and to assist in forcing down the plunger-rod, to provide means by which the plunger-rod may beV arranged for nearly its entire length outside of the eduction-pipe, to simplify and cheapen the manufacture of the pump-cylinder, and to provide an improved type of valved plunger.

To the accomplishment of `these ends my invention consists in the novel construction, arrangement,and combination of parts, which will be hereinafter'fully described and claimed.

In the accompanying drawings, forming a part of this specification, Figure l is a side elevation of my improved pump. Fig. 2 is a horizontal section through the plunger-operating meehanism, taken in the plane of the dotted line 2 2 on Fig. l. Fig. 3 is a ventical` cross-section in the plane of the dotted line 3 3 on Fig. l. Fig. 4is a detail View, in side elevation, of the shiftable power-Wheel.

The same numerals of reference denote like parts in each ofthe several figures ofthe drawings. y

34 designates a base-plate having a collar 34, Within Which is-arranged the educt-ionpipe, and from this base-plate rises a pair of standards 35, the lower ends of which are securely bolted to the base-plate, as at 35. These standards are arranged parallel to the eduction-pipe 29, and they are connected thereto by means of the horizontal bars or plates 36, the latter being employed in pairs,

as shown more clearly by Fig. 3. Each pair of plates or bars have the outer ends thereof curved at 37 to partially embrace the eduction-pipe 29, and said curved ends of the bars are drawn together and clamped firmly upon the pipe by the bolt 3S.

40 designates the power-Wheel, comprising a rim having one or more grooves 4l, accordling to the number of chains which it may be desired to use, and this power-wheel is provided with a web or plate 42, which is cast in a single piece With the grooved rim, said Web having a wide diametrical slot 43 and other narrower slots 44, as shown more clearly by Fig. 5. The power-wheel is arranged in a vertical position between the upper ends of the standards 35 and the upper pair of bars or .plates 36, and between the plates or bars 36 and the side t'aces of this po'iver-Wheel are interposed the plates 45 46. Said plates have lateral engagement with the power-Wheel, and they are secured thereto by the transverse bolts 47 47, the same passing through the slots 44 in the Web of the power-Wheel.

43 designates the fulcruimbolt, which is secured firmly in the upper ends of the standards 35 and the outer ends of the upper pair of bars 3G, and this fulerum bolt extends loosely through a block or bushing 49, the latter being slidably itted in the Wide slot 43 of the power-Wheel and interposed between the plates 45 46, as clearly shown by Figs. 2 and 3.

50 designates the operating-lever,which is fitted against one face of the power-Wheel and is secured thereto by the bolts 5l, thus inaking the leverfast with the power-wheel, so that these parts Will turn together on the axis attordedby the fulcrumbolt"48;

52 designates a short length of chain, which is iitted in one of the grooves 4l ot the power- Wheel and has its upper end secured by a bolt 53 to the lugs 54 of the power-Wheel. The

other end of thechainis connected to a' hook 55, that is secured or clamped iirmlyto the plunger-rod I8, as shown by-Fig. l, thus operatively connecting the power-Wheel and the plungerrod together.

IOO

55 designates a guide which is clamped, as at 56, to the upper extremity ,of the plungerrod 18, and through this guide is loosely arranged the shank 57 of a hook 5S, the latter having a nut 59, arranged to aiord a seat for the upper end of a take-up spring 60, said spring being loosely fitted on the stem 57 and seated upon the guide 55a. To the hook 58 is connected the upper end of a length of chain 6l, the same being tted in a second groove 4l, provided in the rim of the powerwheel, and the lower end of said chain being secured by a bolt to a lug 62, which is provided on the power-wheel, as shown.

The energy of the spring 60 holds the chain (3l in a taut condition, so as to take up the slack in the parts of the operating mechanism, and as the chain 6l is coiled around the powerwheel in an opposite direction, to the chain 52 it is evident that this spring normally exerts tension on the two chains, because it acts 'through the power-wheel, and thereby prevents any slack from occurring in either of the chains, notwithstanding the wear to which the parts are subjected.

As shown by Fig. l, the power-wheel occupies a concentric relation to the fulcrum-bolt 48, and this arrangement allows the lever 50 to be easily operated, so as to lift the plunger-rod 18 when strain is imposed upon the chain 52 by movement of the lever and the power-wheel in the direction indicated by the arrow in Fig. l. This relative disposition of the parts is advantageous under some circumstances-as, for instance, when the pump is used in shallowwells-but I find it desirable to increase thelifting power of the lever when the pump is used in deeper wells. Under these conditions the nuts on the fulcrumbolt 48 are slackened, as well as the bolts 47 47a, and this allows the power-wheel to be adjusted into eccentric relation to the bolt 48, because the power-wheel may be drawn outwardly from the eduction-pipe, whereby the slotted part 43 of the power-wheel may move on the bolt 48 and the block 49, while the slotted parts 44 of the power-wheel have movement with relation to the bolts 47 47a. The power-wheel may thus be adjusted within the limits ot' the slots 43 44, so as to increase the leverage exerted by the power-wheel on the chain 52 and the plunger-rod. I have also thought it advisable under some circumstances to employ the auxiliary operatin g mechanism which is shown by Fig. l. A treadle-lever 63 is fulcrumed at 64 to the frame, said lever having a series of apertures 65, in either of which may be fitted a pin or bolt 66 in order to adjustably connect a pitman 67 to said treadle-lever, the latter having the foot-loop 68. An intermediate perforated lever 69 is fulcrumed at 70 to the standards, and to it is adjustably connected a second link 7l, which has shiftable connection by a pin 72 with the perforated part 73 of the power which maybe applied by the hand and foot to the plunger-rod. Y

It will of course be understood that the ed action-pi pe and the plunger-rod are carried downwardly below the pump-platform, so that they may be operatively related to a submerged cylinder and a piston which is arranged for operation in said cylinder; but as these parts may be of any preferred vconstruction or of any character known to those skilled in the art I have not considered it necessary to illustrate or to describe the same.

Charges within the scope of the appended claims may be made in the form and proportion of some of the parts, while their essential features are retained and the spirit of the invention is embodied. Hence I do not desire to be limited to the precise form of all the parts as shown, reserving the right to Vary therefrom.

I-Iaving thus described my invention, what I claim asy new is- 1. In a pump, the combination with aplunger-rod and a suitable framework, of a powerwheel provided with a slotted web, plates fastened adjustably to the slotted web, a fulcrum-bolt extending through the slotted web and the plates and supported in the framework, and a chain attached to the powerwheel and connected to the plunger, substantially as described. Y

2. In a pump, the combination with' a plunger-rod and a suitable framework, of a powerwheel having a slotted web, plates applied to opposite sides of the web and connectedby bolts which pass through certain slots in the web, a fulcrum-bolt passing through the plates and another slot in the web of the powerwheel and attached to the framework, and a chain attached to the power-wheel and connected to the plunger-rod, substantially as described.

3. In a pump, the combination with a plunger-rod and a suitable framework, of a powerwheel having a diametrical web provided with the central and side slots, plates applied to opposite sides of the web to span the slots therein, the bolts passing through the side slots in the web and fastening the plates adjustably to the power-wheel, a fulcrum-bolt passing through the plates and the central slot in the web of the power-wheel and attached to the framework, and a chain attached to the power-wheel and connected to the plunger-rod, substantially as described.

A4. In a pump, the combination With a plunger-rod, of a power-wheel, a chain attached to the power-wheel and to the plunger-rod, a yieldable link slidably supported on the plunger-rod above the point of attachment of said IIO ehain thereto, a cushion-spring operatively another chain connected to the link and the connected to the yieldable link, and a second power-Wheel, substantially as described. lo chain attached to the yieldable link and to In witness whereof I have hereunto set my the power-Wheel, substantially as described. hand in the presence of two Witnesses.

5 5. Inapunlp,theeornbnaton withapower- WILLIAM C. BUCK.

Wheel, a plunger, of a chain connected to the l XVitnesses:

power-Wheel andthe plunger, a spring-aotu T. MYNARD,

` JOHN F. DEUFFERWIEL.

ated link supported by the plunger-rod, and 

